Construction is now underway on more than 15 miles of State Highway 21 in Hays County from SH 80 to the Caldwell County line. The roadway is being converted to a “super 2” highway with paved shoulders to improve safety between San Marcos and Niederwald.

A super 2 highway helps increase safety by providing a periodic passing lane on a 2-lane rural road. The passing lane alternates from one direction of travel to the other, allowing passing opportunities in both directions for motorists...